The global default queue is disabled by default, because artificial serializing of all Ajax requests on a page can significantly affect expected behavior.

What exactly does "significantly affect expected behavior" mean? What are some examples and/or negative consequences of using global default queue. I've used it in my RF/Seam app with no problems AFAIK. thx.

This is referring to the effect of the global default queue causing all Asynchronous JavaScript And XML requests becoming synchronous via the single global queue. That is what is meant here. If the global queue is turned on it can change the behavior on all views of the application without any visible or obvious setting.

This is referring to the effect of the global default queue causing all Asynchronous JavaScript And XML requests becoming synchronous via the single global queue. That is what is meant here. If the global queue is turned on it can change the behavior on all views of the application without any visible or obvious setting.